The world's leading gold tester has now become even easier to use and includes automatic calculations of gold and platinum values for the discerning buyer. Making use of Low Energy Bluetooth technology, your testing device can connect across multiple mobile platforms to become your ultimate pocket tester. Application includes a basic tutorial that will walk you through the steps of testing gold and using the online calculation tool. This free application requires that your Apple device be LE Bluetooth capable and also requires the purchase AuRACLE AGT Blue testing platform.